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December Weather in Vetralla, Italy

Last updated: August 23, 2025

In Vetralla, Italy, the average temperature in December hovers around 9°C (49°F), with a minimum of 0°C (31°F) and a maximum of 17°C (64°F). Expect 126 mm (5.0 in) of precipitation spread over 13 days, contributing to an average humidity of a damp 83%. Prepare for a mix of chilly and wet weather as the season unfolds!

December Temperature in Vetralla

In December in Vetralla, the average temperature is 9°C (49°F). Maximums can reach 17°C (64°F) and minimums can drop as low as 0°C (31°F). Pack layers to stay comfortable while exploring the varied weather.

December Weather in Vetralla: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Vetralla, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vetralla, December typically has an average temperature of 9°C (49°F), with highs reaching up to 17°C (64°F) and lows dropping to around 0°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec454851566372777870625548
Data source: Temperature data for Vetralla generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Vetralla

In Vetralla in December, the precipitation amount is 126 mm (5.0 in) over the course of 13 days.

December Precipitation Trends in Vetralla

The chart displays monthly precipitation patterns in Vetralla, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Vetralla, December typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec6979817884353026101108184126
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Vetralla

In Vetralla in December, humidity is 83%. With an average temperature of 9°C (49°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable for traveling and requiring extra layers to stay warm and dry.

December Average Humidity in Vetralla

This chart illustrates the average monthly humidity levels in Vetralla, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Vetralla is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%76%68%70%69%62%57%55%66%79%84%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Vetralla

In Vetralla in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Vetralla, you can visit Hourly UV Index in Vetralla.

Maximum UV Index Levels in Vetralla for December

The chart shows the monthly maximum UV Index (UVI) for Vetralla in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Vetralla typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34578101097532
Data source: Vetralla December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Vetralla Compares to Other Months

Weather in Vetralla varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Vetralla, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Vetralla, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)69 mm (2.7 inches)84%moderate
February Weather9°C (49°F)79 mm (3.1 inches)76%moderate
March Weather10°C (51°F)81 mm (3.2 inches)68%moderate
April Weather13°C (56°F)78 mm (3.1 inches)70%high
May Weather17°C (64°F)84 mm (3.3 inches)69%very high
June Weather22°C (72°F)35 mm (1.4 inches)62%very high
July Weather25°C (77°F)30 mm (1.2 inches)57%very high
August Weather26°C (78°F)26 mm (1.0 inches)55%very high
September Weather21°C (71°F)101 mm (4.0 inches)66%high
October Weather17°C (62°F)108 mm (4.2 inches)79%moderate
November Weather13°C (55°F)184 mm (7.2 inches)84%moderate
December Weather9°C (49°F)126 mm (5.0 inches)83%low

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